Manufacturer, Supplier & Exporter of 4140 Alloy Steel Shim

4140 Alloy Steel Shim is a high-strength, low-alloy steel product known for its toughness, fatigue strength, and excellent resistance to abrasion and impact. Made from AISI 4140 alloy steel, which contains chromium, molybdenum, and manganese, these shims are widely used in applications requiring superior mechanical performance and dimensional stability. 4140 steel offers a unique balance of hardness and ductility, making it suitable for industries such as aerospace, automotive, oil & gas, tooling, and heavy machinery. The shim form of this alloy is used for precision adjustments, alignment, gap filling, and load distribution in high-stress environments.

Riddhi Siddhi Impex, a leading metal manufacturer and supplier based in Mumbai, India, provides high-quality 4140 Alloy Steel Shims in various thicknesses, sizes, and surface finishes. With a commitment to precision and customization, the company caters to engineering firms, equipment manufacturers, and maintenance service providers across the country. Their expertise in alloy steel processing ensures tight dimensional tolerances, excellent flatness, and the ability to meet both Indian and international quality standards such as ASTM A506 and AISI 4140

As a trusted domestic supplier, Riddhi Siddhi Impex serves major industrial hubs across India, including Mumbai, Delhi, Bengaluru (Bangalore), Hyderabad, Chennai, Kolkata, Pune, Ahmedabad, Surat, and Vadodara. These cities are home to a wide range of manufacturing, infrastructure, automotive, and mechanical engineering companies that frequently rely on 4140 alloy steel shims for maintaining alignment and ensuring optimal performance of their equipment and machinery. The company’s fast turnaround times and customized delivery schedules make it a preferred supplier in these competitive markets.

Beyond the metro cities, Riddhi Siddhi Impex also supplies 4140 Alloy Steel Shims to growing industrial cities like Rajkot, Nagpur, Indore, Bhopal, Jaipur, Kanpur, Lucknow, Agra, and Varanasi. These regions have seen rising demand for alloy-based materials due to increasing infrastructure development and the establishment of mid-sized engineering and fabrication units. For these clients, Riddhi Siddhi Impex offers technical consultation and the flexibility to produce custom shims that meet application-specific mechanical properties.

In Northern India, cities such as Amritsar, Chandigarh, and Lucknow are emerging as key regional hubs for machinery repair, railways, and manufacturing support services. 4140 shims supplied here are used in diesel engine overhauls, press machine maintenance, and rail component alignment. Riddhi Siddhi Impex ensures consistent supply and maintains material traceability to meet the stringent requirements of these industrial sectors.

4140 Alloy Steel Shim – Specification & Technical Details

Specification

Property	Details
Grade	AISI 4140 / ASTM A506 / SAE 4140
Material Type	Chromium-Molybdenum Alloy Steel
Thickness Range	0.05 mm – 3.00 mm
Finish	Cold Rolled, Annealed, Hardened & Tempered
Form	Shims, Strips, Rolls, Sheets, Precut Shapes

Chemical Composition (% by Weight)

Element	Content
Carbon (C)	0.38 – 0.43
Manganese (Mn)	0.75 – 1.00
Chromium (Cr)	0.80 – 1.10
Molybdenum (Mo)	0.15 – 0.25
Silicon (Si)	0.15 – 0.35
Phosphorus (P)	≤ 0.035
Sulfur (S)	≤ 0.040

Mechanical Properties

Property	Value
Tensile Strength	850 – 1000 MPa (Hardened & Tempered)
Yield Strength	≥ 655 MPa
Hardness	24 – 32 HRC (Annealed), up to 60 HRC (Hardened)
Elongation	≥ 18%
Modulus of Elasticity	~200 GPa

Standard Dimension Chart

Thickness (mm)	Width (mm)	Length (mm)
0.05 – 3.00	10 – 1000	100 – 3000

Equivalent Grades

Standard	Equivalent Grade
ASTM	A506 Gr 4140
AISI/SAE	4140
EN	EN 1.7225 / 42CrMo4
DIN	42CrMo4
JIS	SCM440

Other Types of Shims Offered

Shim Type	Application
Low Carbon Steel Shim	General fabrication, low-stress adjustment
High Carbon Steel Shim	Tooling, wear resistance, higher hardness
Stainless Steel Shim	Corrosion-resistant environments, pharma, food
Brass Shim	Decorative, electrical insulation
Copper Shim	Thermal and electrical conductivity

The Southern industrial belt, including cities like Mysuru (Mysore), Udaipur, Jodhpur, Visakhapatnam, Coimbatore, Madurai, Kochi, Thiruvananthapuram, and Mangalore, also sees consistent demand for 4140 alloy steel shims. Many businesses here operate in the automotive components, precision tooling, and aerospace subcontracting segments—industries where high-performance shims are essential. Riddhi Siddhi Impex delivers to these regions with support from logistics partners and ensures that every shim meets the hardness, toughness, and fatigue-resistance specifications required for critical applications.

Frequently Asked Questions (FAQs)

Q1: What makes 4140 Alloy Steel Shim suitable for industrial use?

A1: It offers excellent tensile strength, impact resistance, and fatigue strength, ideal for heavy-duty applications in machinery and tooling.

Q2: Do you offer custom-cut 4140 alloy steel shims?

A2: Yes, Riddhi Siddhi Impex supplies 4140 shims in custom thicknesses, widths, lengths, and hardness as per client requirements.

Q3: What is the lead time for domestic delivery?

A3: Delivery timelines vary by city, but most orders in cities like Mumbai, Delhi, Pune, and Ahmedabad are fulfilled within 3–7 business days.

Q4: Are heat-treated 4140 shims available?

A4: Yes, we provide annealed, normalized, or hardened & tempered 4140 shims with test certificates on request.